Write some sentences of your own, and include a note about both the mode and the degree.
The easiest way to do this is to first choose a modal verb at random: can, could, may, might, must, shall, should, will, and would.
Then choose a mode: likelihood, necessity, obligation, inclination, and ability.
And then see what you can make with your chosen verb. If the pairing doesn't seem to work, try a different combination until you get something.
For instance, you might choose would + ability. Can we make an ability statement with that combination? How about: "I would never be able to eat a dozen hot dogs." (ability, low degree)
Again, if you want more ideas, check this page of modal examples and links.